Comparisons returning incorrect value in batch

Question

I have the code:

@echo off
set /p dec="Path? "
set patha="C:\Users\%username%\%dec%"
set /a i=2
setlocal EnableDelayedExpansion
:import
if "%i%"=="12" goto loopend
if "!patha:~-%i%,1!"=="." set ext="!patha:~-%i%!"
set /a i=%i%+1
goto import
:loopend
echo %ext%
pause

It loops through the code 10 times, but when I have it echo "!patha:~-%i%,1!" and it echoes "." it doesn't set the ext variable. Am I doing comparisons wrong?

Magoo · Accepted Answer · 2013-11-06 04:46:28Z

2

Works happily or me in W7, although

FOR /f %%i IN ("%patha%") DO SET ext="%%~xi"
echo %ext%

would seem to do the same thing.

That is, assuming you want to extract the last n characters starting "."... (that's not clear)

answered Nov 6, 2013 at 4:46

Magoo

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